This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X310, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC Airtac SU32~50 Standard Cylinder SU32X310 is a double-acting profile-type standard cylinder with a Ø32mm bore and 310mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X310, which matches its bore, stroke, force and mounting.
The AirTAC SU32X310 is a discontinued double-acting profile-type cylinder with a 32mm bore and 310mm stroke. Delivering 402N push at 0.5MPa, its direct replacement is the SAU32X310, preserving the original 1/8 port, M10x1.25 rod, and SC-series mounts. The extruded aluminium body is more compact than equivalent ISO cylinders.
Because this 310mm stroke exceeds 300mm, use external guides to prevent rod bending under side loads. This non-magnet SKU cannot accept sensors, whereas the SAU upgrade supports modern CMSG/DMSG/EMSG switches and a built-in SAUF valve option.
| Model | Airtac SU32~50 Standard Cylinder SU32X310 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X310 |
| Bore size | Ø32 mm |
| Stroke | 310 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X310 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X310 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×310 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Pushes light cartons off a belt line using 402N push at 0.5MPa, with the 310mm reach clearing guide rails.
Ejects moulded parts from a press area, where the compact 32mm profile saves space and the 241N safe load handles ejection weight.
Actuates small machine tool guards and stops, requiring external guides to support the 310mm stroke under lateral stress.
To replace the SU32X310, order the SAU32X310 direct equivalent, confirming the 1/8 port, PT thread, and SC-series mounting. If stepping up force, the 40mm bore yields 628N push at 0.5MPa; if compactness matters, note this 32mm bore provides 345N pull. For the 310mm stroke, add external guides to absorb side loads and prevent rod bending. This non-magnet SKU cannot take sensors, but if you need position detection on the SAU, specify -S for CMSG/DMSG/EMSG switches. For load holding on air loss, add an external rod lock, as cushions only decelerate.
Replacement checklist
Yes, the SU32X310 is discontinued. The direct replacement is the SAU32X310. It matches the 32mm bore, 310mm stroke, 402N force, 1/8 port, and SC-series mounting. The SAU also adds a SAUF built-in-valve option the SU lacked.
It delivers 402N push and 345N pull at 0.5MPa, 563N at 0.7MPa, and a max of 82kgf at 1.0MPa. This non-magnet SKU cannot take sensors. If sensing is needed on the replacement, the SAU uses CMSG/DMSG/EMSG switches, unlike the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X310 replacement — usually within 7-8 hours.